Reading a Json Array in android

Question

I'm trying to read a JSON array. Here is my code.

        JSONArray jArray = new JSONArray(jsonString);

        System.out.println("*****JARRAY*****"+jArray.length());
        for(int i=0;i<jArray.length();i++){


                JSONObject json_data = jArray.getJSONObject(i);
                Log.i("log_tag","_id"+json_data.getInt("account")+
                        ", mall_name"+json_data.getString("name")+
                        ", location"+json_data.getString("number")+
                        ", telephone"+json_data.getString("url")+
                        ",----"+json_data.getString("balance")+
                        ",----"+json_data.getString("credit")+
                        ",----"+json_data.getString("displayName")
                );

        }

And my sample JSON files syntax is as follows,

{
    "list": [
        {
            "account": 1,
            "name": "card",
            "number": "xxxxx xxxx xxxx 2002",
            "url": "http://www.google.com",
            "balance": 1.0,
            "credit": 1.0,
            "displayName": "hsbc bank" 
        },
        {
            "account": 2,
            "name": "card2",
            "number": "xxxxx xxxx xxxx 3003",
            "url": "http://www.google.com",
            "balance": 2.0,
            "credit": 2.0,
            "displayName": "nsb bank" 
        } 
    ],
    "count": 2
}

It has a curly brace in front. When i try to execute this code block it gives an error saying

A JSONArray text must start with '[' at character 1 of....

Has anyone encountered a problem like this? Any help would be greatly appreciated. Please show me a sample code block if can. Thanks in advance.

recoup8063 · Accepted Answer · 2014-11-09 23:20:35Z

71

A JSON Object starts with a { and ends with a } while a JSON Array starts with a [ and ends with a ].

In your case, change your code to have a JSONObject instead.

JSONObject json = new JSONObject(jsonString);
JSONArray jArray = json.getJSONArray("list");

System.out.println("*****JARRAY*****" + jArray.length());

for(int i=0; i<jArray.length(); i++){
    JSONObject json_data = jArray.getJSONObject(i);

    Log.i("log_tag", "_id" + json_data.getInt("account") +
        ", mall_name" + json_data.getString("name") +
        ", location" + json_data.getString("number") +
        ", telephone" + json_data.getString("url") +
        ",----" + json_data.getString("balance") +
        ",----" + json_data.getString("credit") +
        ",----" + json_data.getString("displayName")
    );
}

edited Nov 9, 2014 at 23:20

recoup8063

4,2906 gold badges39 silver badges61 bronze badges

answered Nov 22, 2010 at 11:32

Buhake Sindi

89.5k30 gold badges176 silver badges234 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Buhake Sindi Over a year ago

Great, glad to have been of help. Don't forget to accept an answer! :-)

Matt Colliss · Accepted Answer · 2010-11-22 11:31:24Z

8

You first need to create a JSONObject to get the Array from, something like this should work:

JSONObject jsonObject = new JSONObject(jsonString);

JSONArray jArray = jsonObject.getJSONArray("list");

answered Nov 22, 2010 at 11:31

Matt Colliss

1,4141 gold badge12 silver badges22 bronze badges

Comments

mirazimi · Accepted Answer · 2016-08-22 04:41:01Z

3

String result = js.getString("Result");

                    JSONArray js2 = new JSONArray(result);
                    for (int i = 0; i < js2.length(); i++) {
                        JSONObject js3 = js2.getJSONObject(i);
                        categoriescity.add(js3.getString("Title"));
                    }

answered Aug 22, 2016 at 4:41

mirazimi

90611 silver badges11 bronze badges

1 Comment

iSofia Over a year ago

Thank you very, very much, Rashid Mirazimi. You saved my day.

Collectives™ on Stack Overflow

Reading a Json Array in android

3 Answers 3

1 Comment

Comments

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

1 Comment

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related